Manufacture of briquets for metallurgical or other purposes.



UNITED STATES PATENT OFFICE.

"WILLIAM FREDERICK COLLINS, OF LONDON, ENGLAND.

MANUFACTURE OF BRIQUETS FOB METALLURGICAL OR OTHER PURPOSES.

982, 7 96. No Drawing.

Specification of Letters Patent.

' Application flled luly 27, 1908. Serial No. 445,567.

Patented 'Jan. 31, 1911.

1 and useful Improvements in the Manufacture of Briquets for Metallurgical or, other Purposes; and I do hereby declare that the following is a full, clear, and exact description of the invention, which. will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in the manufacture of briquets for-metallurgical or other-purposes. I

It is well known that considerable difliculty exists in the smelting of ores, or the residues of metallurgical operations, in a fine orpowdery condition in metallurgical furnaces; for instance, with certain fine sand ores, on treatment in blast furnaces, the blast blows the ores out of the furnace. My invention is designed to facilitate the treatment of such ores or materials and con- 'sists in binding them together by solid Waores, or of ore in combination with carbo naceous material or lime, or of lime alone or in combination with carbonaceous mate-- rial, or of combmations of materials used for metallurgical or like pur oses.

In carrying out my invention the silicate is ulverized and thoroughly incorporated wit the rest of the in edients which may include a metallic oxi or a calcium compound. During the incorporation it isnecessary to pass the mass through a heated chamber or mixer, if desired steam may be injected during the process. The mixture in a heated state I submit topressure, in

forming it into blocks, by passing it througha suitable machine.

Or the silicate is liquefiedby subjecting it to steam pressure or to heat or otherwise and thorou hly incorporated with the rest of the Ingredients (which may include a metallic oxid or a calcium cdmpound). During the incorpov ration it is necessary to pass the mass through a chamber or mixer (preferably heated) 'and, if. desired, steam may be injected during the process. The mixture in a heated state is subjected to pressure to form it into blocks. The quantity of binding material used advantageously bears a proportion of about 3% to 5% of the mass.

clearly understood, however, that the coating is not added for calorific or binding purposes but merely to assist the blocks in withstanding atmospheric or other action.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. The method of a manufacturing ore bri uets which consists in incorporating wit the material to be briqueted, solid water-glass, as a bindin agent, said waterglass being pulverize and subjectin andv moisture to liquefy it, then forming the incorporated material into blocks, substantially as described.

2. The method of manufacturing ore briquets which consists in incorporating with the material to be briqueted, solid water-glass as a binding agent, the said waterglass bein pulverized, and sub ected to the action of mat and moisture to liquefy it,

adding a hydraulic bindin material, to in-' crease the binding action 0 the waterlass, and forming the incorporated materia into blocks.

'3. The method of manufacturing ore briquets which consists in incorporating the material to be briqueted with solid pu verized water-glass, and subjecting the materials to the action of heat and moisture during such incorporation, to liquefy thepowdered water-glass, and subjecting the incorporated materials to pressure, while 1n a heated condition, to form it into blocks, substantially as described.

4. The method of briquets which consists in incorporatm the material to be briqueted with solid pu veriz ed water-glass, and subjecting the materials to the action of heat and moisture during suchincorporation, to liquefy the powere briquets are liable to be manufacturing ore the pulverized water-glass to the action 0 heat dered waterfglass, and subjecting the inrial to be incorporated, a binder consisting I0 corporated materials to pressure While in of solid pulverized water-glass and a hya heated condition, t0v form it into blocks, draulic binder to increase the binding acthen treating the blocks with a coating of tion of the water glass.

water resisting material. I 5. An ore 'briquet consisting of the ma- WILLIAM FREDERICK COLLINS terial to be incorporated and a binder con- Witnesses:

sisting of solid pulverized Water-glass. W. R. MYERS,

6. An ore briquet consisting of the mate- C. H. BRENINO TAYLOR. 

